B0190 code meaning
Front Wiper Park Switch Circuit
What B0190 means
No known public source lists B0190, neither a J2012 table nor a carmaker document. The part named in the title is common: a cam on the wiper gear opens or closes contacts, so the control knows when the blades are at rest and can keep the motor running until they get there. Controllers also use this signal for protection. In US5694011A a timer set longer than one wipe cycle cuts the motor if the park signal stops changing, which catches blades frozen to the glass; US4320329A treats a missing park position after a cycle as a blocked motor and lengthens the pause. A patent by FCA, US8598828B2, filters the contact signal so noise is not taken for a state change. With a faulty circuit the blades may stop anywhere, keep sweeping after switch-off, or intermittent mode misbehaves.
B0190 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of B0190
- Wipers stop in the field of view instead of at the bottom of the screen
- Wipers keep running after being switched off or intermittent mode fails
Common causes of B0190
- Most likelyPark contacts in the wiper motor gear housing worn, dirty or corroded by water
- PossiblePark signal wire or connector at the wiper motor open or shorted
- Less likelyFuse or relay in the park supply circuit failed
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Wiper motorWiper park switchBody control module
What each part of B0190 means
| B | Body system: airbags, seat belts, power seats, lights and climate control. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 90 | The exact fault in that area. |
What to do next
- Note B0190 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about B0190
What does B0190 mean?
B0190 means "Front Wiper Park Switch Circuit". No known public source lists B0190, neither a J2012 table nor a carmaker document. It is a generic code, so it means the same on every make.
Is it safe to drive with B0190?
B0190 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will B0190 fail an emissions test?
B0190 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is B0190 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will B0190 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.